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The influence of microstructure of mox fuel on its irradiation behaviour under transient conditions

Objetivo

Excessive fission gas release in MOX fuel prevents the achievement of burnup above40 GWd/tHM. The objective of the MICROMOX project is to study to what extent theas-fabricated microstructure of the MOX fuel influences the gas release intransient conditions. For this/ MOX fuels with various microstructures (homogeneous/heterogeneous Pu distribution, large grain) will be fabricated by ITU, loaded in rodlets instrumented for temperature and pressure measurements and irradiated at moderate rating in HFR to achieve a burnup of 60 GWd/tHM. The end of irradiation will consist in a temperature transient allowing follow fission gas release as a function of fuel temperature. Post-irradiation examinations of fuel will be made at NRG and PSI, focusing on fuel microstructural investigations. These data will be used to model the fission gas release.

Convocatoria de propuestas

Data not available

Régimen de financiación

CSC - Cost-sharing contracts

Coordinador

BELGONUCLEAIRE SA
Aportación de la UE
Sin datos
Dirección
Avenue Ariane 4
1200 BRUXELLES
Bélgica

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Coste total
Sin datos

Participantes (5)